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Incircle, incentre, inradius

Incircle, incentre, inradius -An incircle is a closed plane curve whose points are equidistant from another point located inside it, called centre. -An incentre is the point from which all points are equidistant. -An inradius is a linear segment joining any point on the circumference or the surface of a sphere with its centre. Link: https://www.youtube.com/watch?v=KEOa_WUoItY […]

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Time, units of time

Time, units of time Time is the duration during which an event occurs, or is the period between two events.Time is commonly measured in units of seconds, minutes, hours, days, weeks, months, years, etc.           https://www.crestolympiads.com/topic/class-2-time   Units of time seconds < minutes < days < weeks < months < years […]

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Suma

Addition  Addition (signified by the plus symbol +) is one of the four basic operations of arithmetic.  The addition of two whole numbers results in the total amount or sum of those values combined. Addidion is the inverse of subtraction. […]

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